How to appeal a Collin County, TX property assessment
✓ Verified — Last verified October 24, 2026
Filing details published for Collin County. Match the notice and assessment cycle to the official instructions.
Official appeal instructionsNot tax or legal advice; confirm with your county.
Filing timing
Notice-dependent instructions
Generally May 15 or 30 days after the notice of appraised value is mailed, whichever is later.
Official source. Verified .
Where to file
File a notice of protest with the appraisal review board (ARB).
Official source. Verified .
Assessment notice period
2026 real-property notices scheduled to be mailed April 15.
Official source. Verified .
Official offices
Marty Wright
Sources for these instructions
https://comptroller.texas.gov/taxes/property-tax/protests/
The usual protest filing deadline is May 15 or 30 days after the appraisal district mails the property owner the notice of appraised value, whichever is later.
Verified October 24, 2026
https://comptroller.texas.gov/taxes/property-tax/protests/
If you are dissatisfied with your property’s appraised value or if errors exist in the appraisal records regarding your property, you should file Form 50-132, Property Owner’s Notice of Protest (PDF), with the ARB.
Verified October 24, 2026
https://comptroller.texas.gov/taxes/property-tax/protests/
Appraisal Protests and Appeals
Verified October 24, 2026
Continue with your property
Common questions
Where do I file a Collin County assessment appeal?
File a notice of protest with the appraisal review board (ARB).